a, b, c = map(int, input().split())


if a == b or b == c or c == a or a == b == c:
    print(0)
    
elif not( a>b>c or a<b<c ):
    print('INF')
    
else:
    cnt = 0
    mx = max([a,b,c])
    for i in range(1,mx+1,1):
        ar = a % i 
        br = b % i
        cr = c % i
        if ((ar < br and br > cr) or (ar > br and br < cr )) and (ar != cr):
            cnt += 1
    print(cnt)